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Examples of questions that could be included in your Unit 1 Test

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
What is the main reason scientists use a model of an atom?   An atom is very small, and a model aids in its study  
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Which graph best shows change over time?   Line Graph  
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Students use a 3D reproduction of a skeleton to learn about bones. What describes this tool?   Physical Model  
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What is the purpose of a scientific law?   to describe a phenomenon in nature  
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Which source should a scientific researcher reject because of unreliability?   A magazine article advertising a product  
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Which term can describe a mathematical formula that describes a phenomenon in nature?   A scientific law  
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Which phrase defines a scientific theory?   a well-supported explanation  
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Jo must conduct a scientific investigation for a project. Which step should she complete first?   Define her research problem or question  
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the difference between a test variable and an outcome variable is...   The test is manipulated and the outcome provides results.  
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Why do many scientific experiments include several trials as opposed to one single trial?   It increases the sample size being tested.  
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